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本文介绍交流变频器能耗制动、回馈制动的基本原理和主要特点,分析在采煤机上应用的技术关键,提出在煤层倾角较大的综采工作面上,采用回馈制动的四象限交流变频器是较合理的选择。
This paper introduces the basic principles and main features of AC drive dynamic braking and feedback braking, and analyzes the key technology applied in coal winning machine. It is proposed that four-quadrant feedback braking should be adopted on fully mechanized coal mining face with large dip, AC drive is a more reasonable choice.